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Red Beam

 

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Krypton laser-powered red laser beam of 2.0mm diameter cylindrical 5.0W Are producing.?

I only ran into the room. What is the strength from Laser light off a wall 1.1 meters? I'm terrible physics AM, if anyone can help me with this problem, I do it very We would appreciate it. Thank you.

Answers - w / m> 0.796 P a ^ 2 = Area = 5.0 w = 2.0mm * di * pi pi = 6.28 mm ^ 2 is converted to square meters = 6.28E - 6m I ^ 2 = P / I = (5.0 W) / (6.28E - 6 m ^ 2) = 0.796 W / m ^ 2

 

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Manslaughter arrest after crash kills 4
ST. PETERSBURG, Fla., Aug. 2 (UPI) -- The driver of a car that allegedly ran a red light and killed four members of an Orlando, Fla., family has been arrested on manslaughter charges, officials say. Manslaughter - Arrest - ST. PETERSBURG - Maps and Views - Police